[Release] langchain-ai/langchain langchain-core==1.4.6: langchain-core==1.4.6

langchain-core version 1.4.6 introduces package version tracking in tracing metadata for better observability, fixes normalization of v1 streamed tool calls in OpenAI integration, and upgrades mypy to 2.1 with unified type-checking configuration across the monorepo. This release enhances tracing capabilities, improves tool call handling consistency, and strengthens code quality standards.

Key Points

• •Package version tracking added to tracing metadata for improved observability and debugging
• •Streamed tool calls from OpenAI v1 API are now properly normalized for consistency
• •mypy upgraded to version 2.1 for enhanced type checking
• •Type-check configuration unified across the entire monorepo for consistency
• •Fixes address compatibility and standardization issues in core and OpenAI partner integrations
• •Release focuses on observability, reliability, and code quality improvements

Workflow Diagram

Concepts